Files from the Biodiversity Heritage Library (released as Attribution-NonCommercial-ShareAlike)

Pigeons and rabbits in ..
© Delamer, Eugene Seba..
Public Domain

Pigeons and rabbits in ..
© Delamer, Eugene Seba..
Public Domain

The wild beasts of the ..
© Finn, Frank
Public Domain

The quadrupeds of North..
© Audubon, John James;..
Public Domain